#include<stdio.h>


int main()
{
    int a = 3;
    switch (a)
    {
        case 0:
        {
           printf("值为0\n");
           break;
        }
        case 1:
        {
            printf("值为1\n");
            break;
        }
        //上述条件都不满足，走默认分支
        default:
        {
            printf("以上条件都不满足！\n");
        }
    }
    return 0;
}